Initial Inspection and Diagnostic Overview

Inspection and Verification
1 Verify the customer concern.
2 Visually inspect for obvious signs of damage and system integrity.





3 If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4 If the concern is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the relevant DTC Index.

DTC Index
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to A L L Diagnostic Trouble Codes ( DTC ). For additional information, refer to Diagnostic Trouble Code (DTC) Index - 5.0L, DTC: Module Name: Engine Control Module Testing and Inspection